EP Patent

EP0245126A2 — Percutaneous absorption preparation and process for preparing same

Assigned to Maruho Co Ltd · Expires 1987-11-11 · 39y expired

What this patent protects

A percutaneous absorption preparation which comprises calcium salt of an acidic anti-inflammatory or analgesic drug having carboxyl group as the active ingre­dient and present in an amount of 0.3 - 10% by weight; a medium for the active ingredient which is selected form the group…

USPTO Abstract

A percutaneous absorption preparation which comprises calcium salt of an acidic anti-inflammatory or analgesic drug having carboxyl group as the active ingre­dient and present in an amount of 0.3 - 10% by weight; a medium for the active ingredient which is selected form the group consisting of an ethylene glycol mono-lower alkyl ether, propylene glycol, polyethylene glycol and dimethyl­sulfoxide, the medium being present in an amount at least sufficient to dissolve the active ingredient; an absorption promotor selected from the group consisting of 1-dodecyl­azacycloheptan-2-one, hexamethylenelauramide, N-methyl-2-­pyrrolidone, a sucrose aliphatic acid ester, dimethylsulfoxide and a nonionic surfactant and present in an amount of 0.5 - ­10% by weight; and the remaining being other reagents and/or carriers required for a desired form of the preparation.

Drugs covered by this patent

Patent Metadata

Patent number
EP0245126A2
Jurisdiction
EP
Classification
—
Expires
1987-11-11
Drug substance claim
No
Drug product claim
No
Assignee
Maruho Co Ltd
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

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